The first snow has arrived in the Great Falls area, which means many heating systems just had their first real workout of the season. Even if you’ve already turned the heat on a few times, a colder night can make your furnace, boiler, or heat pump run longer than it has in months.
This is a good time to pay attention to how your system is behaving. Most homeowners don’t need to do anything complicated. A few minutes spent listening, looking, and checking how the house feels can help you spot a small problem before the next Montana cold snap puts even more demand on your heating system.
Table of Contents
First Snow Heating Checklist
1. Listen to Your Heating System
Start by listening during a normal heating cycle. With a forced-air furnace, you should hear the system start, followed by the blower moving air through the house. Boilers may make some normal expansion or circulation noises as pipes and radiators warm up, and heat pumps will have their own normal operating sounds.
What you’re looking for is something different from what you normally hear. Repeated banging, grinding, squealing, unusually loud vibration, or rapid starting and stopping are worth investigating. One odd sound doesn’t always mean something is wrong, but a new noise that continues through multiple heating cycles is a good reason to schedule service.
2. Watch How the System Starts and Stops
A heating system should generally start, run long enough to warm the home, and then shut down when the thermostat is satisfied. ENERGY STAR specifically includes checking the system’s starting cycle, operation, and shutdown as part of professional HVAC maintenance.
Pay attention if the system repeatedly starts and stops without bringing the house up to temperature. The same applies if the furnace seems to run almost constantly when the outdoor temperature isn’t especially cold. These symptoms can have relatively simple causes, such as airflow or thermostat problems, but they can also indicate something that needs professional diagnosis.
3. Check the Airflow and Filter
If you have a forced-air system, walk through the house and check a few supply registers. You don’t need to measure the airflow. You’re simply checking that warm air is reaching the rooms normally and that one part of the house isn’t suddenly getting much less airflow than usual.
Then check the furnace filter. A dirty filter restricts airflow and makes the system work harder. Try to check filters monthly and cleaning or replacing them when they’re dirty.
Don’t automatically install the highest-rated filter you can find. Some systems aren’t designed for the additional airflow resistance of very restrictive filters. Use the type and size recommended for your equipment, or ask your HVAC technician if you’re unsure.
4. Pay Attention to Temperatures Around the House
Montana’s temperature swings can expose comfort problems that aren’t noticeable during mild weather. After the first genuinely cold night, notice whether certain rooms are staying much colder than the rest of the house.
A small temperature difference between rooms can be normal, especially in older homes. A room that suddenly isn’t heating at all, however, deserves attention. Depending on the system, the problem could involve airflow, a closed damper, a circulation issue, thermostat placement, or another equipment problem.
Before calling for service, make sure registers aren’t blocked by furniture or rugs and that thermostats haven’t accidentally been changed.
5. Check Your Carbon Monoxide Alarms
If your home has fuel-burning equipment, the beginning of heating season is also a good time to check your carbon monoxide alarms.
The U.S. Consumer Product Safety Commission recommends CO alarms on every level of the home and outside sleeping areas. Test your alarms according to the manufacturer’s instructions and make sure they’re within their recommended service life.
A CO alarm is an important safety device, but it isn’t a substitute for maintaining fuel-burning equipment.
If a carbon monoxide alarm sounds, don’t troubleshoot the furnace yourself. Move everyone outside to fresh air and call 911 or your local emergency services. Don’t return inside until emergency responders say it’s safe.
6. Look Around the Equipment
You don’t need to remove furnace panels or take anything apart. Just give the area around your heating equipment a quick visual inspection.
Make sure the area is clear of stored boxes, paper, cleaning supplies, and other clutter. Look for obvious water around a furnace or boiler, unusual soot or discoloration, damaged venting that you can see without touching it, or anything else that looks different from normal.
For homes with a heat pump, check the outdoor unit too. Tumbleweeds and other debris shouldn’t be piled against the unit or blocking airflow.
When Should You Call for HVAC Service?
Some heating problems can wait for a normal service appointment. Others shouldn’t.
Give us a call if your heating system isn’t keeping the house warm, repeatedly starts and stops, won’t start reliably, is making a persistent new noise, has noticeably reduced airflow, or shows signs of leaking water or another mechanical problem.
If you smell gas, suspect a carbon monoxide problem, see smoke or fire, or believe there’s another immediate safety hazard, leave the area and contact the appropriate emergency service or utility first.
Don’t Wait for the Deep Freeze
The first snow is a useful test run for your heating system. A furnace that struggles on a cold October night may have an even harder time when temperatures drop well below freezing.
At Halcro Heating and Cooling, we serve Great Falls and communities within roughly 100 miles. If something didn’t seem right when your heat came on this weekend, we’re happy to take a look and help determine whether you’re dealing with a simple maintenance issue or something that needs repair.
Our goal isn’t to find something to sell you. It’s to help you understand what’s happening with your system so you can make an informed decision before colder weather arrives.
Let us know how we can help you make sure you’re heating system is winter ready!